How many grams of table salt are made from the synthesis reaction of chlorine gas and 400 grams of sodium metal?

Answer:

4

Explanation:

Speed=Distance/time, so 20/5 divide time divided by distance. so the answer is 4.

The speed of Haley the hummingbird is 4 m/s.

From the question,

We are to calculate the speed of Haley the hummingbird

Speed is given by the formula

\(Speed =\frac{Distance\ traveled}{Time\ taken}\)

From the given information,

The hummingbird can fly from a pansy flower to a hibiscus flower 20 meters away in 5 seconds.

That is,

The bird can cover a distance of 20 meters in 5 seconds.

Therefore,

Speed of the hummingbird = \(\frac{20}{5}\)

Speed of the hummingbird = 4 m/s

Hence, the speed of Haley the hummingbird is 4 m/s.

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Answer:

Explanation:

It is a binary molecular compound ( and when the first element is to the right of the zigzag line on the periodic table you will use prefixes (di)

The balanced equation :

LiI(aq) + AgNO₃(aq) --> AgI(s) + LiNO₃(aq)

Given

Word equation

Required

Balanced equation

Solution

There are 3 ways to express a chemical equation:

Skeleton equation for reaction above :

LiI(aq) + AgNO₃(aq) ⇒ AgI(s) + LiNO₃(aq)

If we look at this reaction, all the cations and anions have a charge of 1 (+1 or -1) so the balanced reaction between the skeleton equation and the balanced equation is the same

Answer:

acceleration is defined as the rate of change in velocity......

Answer:

1.29 g of NaCl.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

HCl(aq) + NaOH(s) —> NaCl(aq) + H2O(l)

Next, we shall determine the masses of HCl and NaOH that reacted and the mass of NaCl produced from the balanced equation.

This is illustrated below:

Molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Mass of HCl from the balanced equation = 1 x 36.5 = 36.5 g

Molar mass of NaOH = 23 + 16 + 1 = 40 g/mol

Mass of NaOH from the balanced equation = 1 x 40 = 40 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl from the balanced equation = 1 x 58.5 = 58.5 g

Summary:

From the balanced equation above,

36.5 g of HCl reacted with 40 g of NaOH to produce 58.5 g of NaCl.

Next, we shall determine the limiting reactant.

The limiting reactant can be obtained as follow:

From the balanced equation above,

36.5 g of HCl reacted with 40 g of NaOH.

Therefore, 1.82 g of HCl will react with = (1.82 x 40)/36.5 = 1.99 g of NaOH

From the calculations made above,

We can see that it will take a higher mass of NaOH i.e 1.99 g than what was given i.e 0.88 g to react completely with 1.82 g of HCl.

Therefore, NaOH is the limiting reactant and HCl is the excess reactant.

Finally, we shall determine the maximum mass of NaCl produced from the reaction.

In this case the limiting reactant will be used as it will produce the maximum mass of the products since all of it were consumed in the reaction.

The limiting reactant is NaOH and the maximum mass of NaCl produced can be obtained as follow:

From the balanced equation above,

40 g of NaOH reacted to produce 58.5 g of NaCl.

Therefore, 0.88 g of NaOH will react to produce = (0.88 x 58.5)/40 = 1.29 g of NaCl.

Therefore, 1.29 g of NaCl were produced from the reaction.

1.189 x 10⁻¹² kg is lost when uranium-235 undergoes fission

The fission of uranium-235 releases 107 kJ/mol

We know that the formula for mass-energy equivalence is

                                              E=mc²

c = 3 x 10⁸ m/s

107000 J= m x  (3 x 10⁸ m/s)²

107000 = m x 9 x 10¹⁶

m = 1.189 x 10⁻¹² kg

In the fission of 1 mole of uranium,   1.189 x 10⁻¹² kg is lost in the reaction

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Answer:

edmentum sample answer

Explanation:

Mass = volume × density

Since the volume of the sample = 5.8 ml

& the density of mercury = 13.5 g/mL

∴  Mass = 5.8 mL × 13.5 g/mL

             = 78.3 g

Answer:

The velocity of the bb when it reaches a height of 203 m can be determined using the laws of projectile motion. Since the bb is moving vertically upwards, its velocity at that height will be zero.

brainlest?

Answer: v = 83.96 m/s

Assuming the acceleration due to gravity is approximately 9.8 m/s^2, we can use the principles of projectile motion and energy conservation.

Using the equation for the vertical displacement of an object in free fall:

Δy = (v₀² - v²) / (2g)

Δy = vertical displacement (203m)

v₀ = initial velocity (105 m/s)

v = final velocity (not known yet)

g = accerlation due to gravity (9.8 m/s^2)

Lets rearrange the equation to solve for the final velocity:

v = v = √(v₀² - 2gΔy)

Substituting the given values:

v = √(105² - 2 * 9.8 * 203)

v ≈ √(11025 - 3979.6)

v ≈ √(7054.4)

v ≈ 83.96 m/s

Therefore, when the BB pellet is at the height of 203m, its velocity will be approximately 83.96 m/s.

Answer:

Move the decimal in 3.45 THREE places to the right to increase the value.

Explanation:

3.45km = 3450m (multiply by 1000)

Answer:

3rd option is the correct answer

Hope this helps!

when NaOH reacts with methyl salicylate, the product is sodium methyl salicylate and water.

(a)Salicylic acid is a simple compound with one carboxyl group and one hydroxyl group. The hydrogen atom bonded to the oxygen atom of the carboxyl group (–COOH) is more acidic than the hydrogen atom bonded to the oxygen atom of the hydroxyl group (–OH).

Because of its proximity to the electronegative oxygen and the resultant weakening of the C–H bond, hydrogen atoms on the hydroxyl groups of the salicylic acid are more acidic than the hydrogen atoms on the methyl salicylate. So, the hydrogen atom of the hydroxyl group at C-2 is the most acidic in salicylic acid.

The hydrogen atom on the methyl group (CH3) at C-8 is the most acidic in methyl salicylate.

(b)When NaOH and methyl salicylate are mixed, sodium methylsalicylate, a white solid, is produced immediately.The reaction equation is:

NaOH + CH3OC6H4COOH ⟶ CH3OC6H4COONa + H2O

Therefore, when NaOH reacts with methyl salicylate, the product is sodium methyl salicylate and water.

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Answer:8.933572

Explanation:

for an approximate result, multiply the volume value by 3.785

Answer:

8.934 liters

Hopefully this helped!

-✩sandwichchan✩

Answer: 15910 meters

Explanation:

1 kilometer = 1000 meters

15.91 kilometers * 1000 meters/1 kilometer =

15.91 * 1000/1=

15.91*1000=15910 meters

Answer: The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides

Explanation:

The moon's gravity affects the oceans nearest the moon because the moon's gravity pulls water into a tidal bulge is a true statement.

The tidal force is the result of the moon's gravitational pull.

The tidal force causes Earth—and its water—to bulge out on its closest and furthest sides from the moon. High tides cause these water bulges.

Thus, the statement is correct.

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Any physical matter that is obtained or made from plants, animals, or the ground without undergoing a chemical process is called a natural material. This is a true statement.

Natural materials are the physical matters that are made from plants, animals and ground(environment) which has not been subjected to any chemical processes for modification.

But any natural material that has undergone any chemical process which has been designed and manufactured to fulfil a particular purpose is called a synthetic material.

Therefore, any physical matter that is obtained or made from plants, animals, or the ground without undergoing a chemical process is called a natural material.

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Sodium hydroxide dissolves into its ions (hydroxide ions and sodium ions). Because NaOH(s) has a standard enthalpy of dissolution of -44.50 kJ/mol.  25.0 g of NaOH(s) dissolve in water to produce 27.81 kilojoules of heat.

There is always heat production or evolution during a neutralisation reaction. The reaction mixture's temperature is increased by the heat that is evolved.

Enthalpy of neutralising NaOH with H2SO4 under ordinary circumstances is approximately 57.3 KJ per gramme equivalent mass, hence heat is generated when an aqueous solution contains 6.

Heat is emitted when an acid and an alkali react, hence enthalpy changes of neutralisation are always negative.

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The IUPAC name of the substance CH3CH2CH2, including the cis or trans designation, is not provided in the question. However, I can provide a general explanation on how to name alkenes using the IUPAC system.

To name alkenes, you need to follow a specific set of rules. Here is a step-by-step guide: Identify the longest continuous chain of carbon atoms that contains the double bond. This will determine the parent chain of the alkene.
Number the carbon atoms in the parent chain, starting from the end closest to the double bond. This will help to assign the location of substituents. Determine the cis or trans designation.

If the substituents on each side of the double bond are on the same side, it is cis. If they are on opposite sides, it is trans. Name the substituents attached to the parent chain using their appropriate prefixes (e.g., methyl, ethyl, propyl, etc.). Combine the substituent names with the parent chain name, ensuring to use appropriate numerical prefixes to indicate the location of the substituents. For example, if the substance CH3CH2CH2 had a double bond between the second and third carbon atoms, and both substituents were on the same side, the IUPAC name would be cis-2-butene.

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Answer:

you can find Valley Glacier in Mount Kenya

The exotoxin that functions by destroying cell membranes is called a cytolytic toxin.

A poison produced by bacteria is known as an exotoxin.An exotoxin can harm the host by killing cells or interfering with regular cellular metabolism. They have a great deal of power and can seriously harm the host.The term "cytolysin" refers to a chemical that is released by bacteria, plants, or animals and is especially harmful to individual cells, frequently leading to the lysis of those cells. Cytolysins are called for the cells in which they function specifically. For instance, hemolysins are the cytolysins that break down red blood cells to release hemoglobins, among other things. Cytolysins may have a role in both venoms and immunity.

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Answer:

Oxygen-O = 6

Carbon C = 4

Gallium G = 3

Astatine A = 7

Arsenic As = 5

Potassium K = 1

Hydrogen H = 1

Helium H = 2

Explanation:

Answer:separate cabbage from liquid

Explanation:

Just trust me lol

Answer:

Its D - separate cabbage from liquid

Explanation:

On Edge 2021

The pressure of the 3rd container will be 7 atm by combining the 2 containers of gas into a 3rd.

Pressure is the name given to the force acting on such a unit area of such a surface. It operates perpendicular to the surface being applied pressure on. Pressure is a force and the space that it acts in.

The standard unit measuring pressure would be a pascal (Pa). Given that a pascal was an extremely small measure of pressure, the kilopascal represents the most appropriate measurement for commonplace gas pressures (kPa). 1000 pascals make up one kilopascal. The atmosphere can be another frequently used measurement of pressure (atm)

The given data is:

P1 =  2atm

P2 = 5 atm

P3 = ?

The precure of 3rd container will be P3 = p1 +p2 = 3 atm +2 atm = 5atm

Thus, pressure, will be 7 atm.

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The first location of chemical and mechanical digestion is the stomach. This statement is false.

Digestion is the breaking down of large insoluble food molecules into smaller water-soluble food molecules so that they can be absorbed into the aqueous plasma. In certain organisms, these small substances are absorbed from the small intestine into the bloodstream. Digestion is important for breaking down food into nutrients that the body uses for energy, growth, and cell repair that it needs to survive.

The digestive system has many forms. A basic distinction is made between internal and external digestion. External digestion evolved early in evolutionary history, and most fungi still rely on it. During this process, enzymes are secreted into the organism's environment, where organic substances are decomposed and some of the products diffuse back into the organism. Animals have a tube (alimentary canal) where internal digestion takes place. This is more efficient as more decomposition products can be trapped and the internal chemical environment can be more effectively controlled.

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It is concluded that the identity of the acid must be a weak acid, but it could be either monoprotic, diprotic, or polyprotic.

Reaction :

It is the titration of a weak acid and a strong base.

It is a neutralisation reaction of monobasic acid and monoacidic base (sodium hydroxide).

The determination of a weak acid in a titration is based on its molar mass and pKa (from points on a titration curve), and its approximate melting point.

The relationship between normality and molarity is :

Normality = base acidity x acid molarity.

We can use M1V1 = M2V2.

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Answer:

The amount of fluid displaced is directly related (via Archimedes' principle) to its volume. In the case of an object that sinks (is totally submerged), the volume of the object is displaced. In the case of an object that floats, the amount of fluid displaced will be equal in weight to the displacing object.

Explanation:

wikipedia

In layperson's terms, P(High Fat ∩ High Sugar) refers to the probability of an event where an item is high in both fat and sugar. It is a statistical representation of the likelihood that an item will contain high levels of both fat and sugar.

In this case, the key word that is generally associated with probability calculation is "and". This means that we are looking for the probability of both conditions being met, which is the intersection (∩) of the two events. The formula for the probability of the intersection of two events is:

P(A ∩ B) = P(A) x P(B|A)

In this case, A is the event of an item being high in fat, and B is the event of an item being high in sugar. P(A) represents the probability of an item being high in fat, while P(B|A) represents the probability of an item being high in sugar, given that it is already high in fat.

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The mass of \(H_{3} PO_{4}\)that forms during the reaction is 519.4 grams.

To calculate the mass of \(H_{3} PO_{4}\)formed during the reaction, we need to use the given information about the moles of \(H_{3} PO_{4}\)and its molar mass.

The given information:

Moles of \(H_{3} PO_{4}\)= 5.3 moles

Molar mass of \(H_{3} PO_{4}\)= 98 g/mol

We can set up a conversion factor to convert moles of H3PO4 to its mass:

Conversion factor: (molar mass of \(H_{3} PO_{4}\)) / (1 mole of H3PO4)

The molar mass of \(H_{3} PO_{4}\)is 98 g/mol. Therefore, the conversion factor can be written as:

Conversion factor = 98 g/mol / 1 mole

To find the mass of H3PO4, we can multiply the moles of H3PO4 by the conversion factor:

Mass of \(H_{3} PO_{4}\)= (5.3 moles) × (98 g/mol)

Now, you can calculate the mass of \(H_{3} PO_{4}\)by multiplying the given moles of \(H_{3} PO_{4}\)by the conversion factor in the green box:

Mass of \(H_{3} PO_{4}\)= 5.3 moles × (98 g/mol)

Mass of \(H_{3} PO_{4}\)= 519.4 g

Therefore, the mass of H3PO4 that forms during the reaction is 519.4 grams.

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Answer:

There are 1.5055X10^23 molecules present in 0.25 moles of Hydrogen gas.

Explanation:

We know,

 1 mole of Hydrogen gas contains 6.022X10^23 molecules

∴ 0.25 moles of Hydrogen contains {(6.022X10^23) X 0.25} molecules

                                                            = 1.5055X10^23 molecules

So, there are 1.5055X10^23 molecules present in 0.25 moles of Hydrogen gas.  

Answer:

See explanation

Explanation:

The seven elements that form diatomic molecules are:

Hydrogen (H) => H₂

Nitrogen (N) => N₂

Oxygen (O) => O₂        

Fluorine (F) => F₂

Chlorine (Cl) => Cl₂  

Bromine (Br) => Br₂

Iodine (I) => I₂    

How to remember the '7' diatomics => look at periodic table and draw a horizontal line starting at Nitrogen (N) through Fluorine (F), then a vertical line from Fluorine (F) through Astatine (As). The lines drawn make the number '7'. One only need to remember Hydrogen (H) also belongs to the set of elements forming diatomic molecules.